4. LONG-TERM DEBT (Details) (USD $)	May 31, 2014	May 31, 2013
LONG-TERM DEBT [Abstract]
Note payable to International Bank	$ 8,647,777	$ 0
Revolving Note payable to International Bank	385,000	0
Term note payble by GRE to International Bank	3,371,660	0
Other notes payable	33,684	66,979
Notes payable	14,504,121	11,002,180
Less: Current portion	(3,979,376)	(1,344,160)
Long-term Debt	10,524,745	9,658,020
Capitalized lease payable, due August 15, 2016, 5% interest, monthly payments of $10,625 plus $0.50 per pallet for monthly sales in excess of 12,500	0	381,727
Note Payable FM Bank [Member]
LONG-TERM DEBT [Abstract]
Note payable	0	4,593,650
Note Payable President [Member]
LONG-TERM DEBT [Abstract]
Note payable	0	527,716
Note Payable FM Bank By Minority Interest [Member]
LONG-TERM DEBT [Abstract]
Note payable	0	3,366,108
Note Payable Director [Member]
LONG-TERM DEBT [Abstract]
Note payable	$ 2,066,000	$ 2,066,000